The ________ is a comma-shaped structure that lies on the surface of the testis, and includes a head, body, and tail.
Fill in the blank(s) with the appropriate word(s).
epididymis
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Which is TRUE about the resting membrane potential?
A. Only nerve and muscle cells have a potential difference across the membrane at rest. B. It requires very few ions to be distributed unevenly. C. It is oriented so that the cell's interior is positive with respect to the extracellular fluid. D. It has the same value in all cells. E. It is not altered by changing concentration gradients of permeating ions.
The higher we go in the mountains, the greater the atmospheric pressure, which causes a loss of oxygen. Comment on this statement.
What will be an ideal response?
Hyperventilation ________ plasma CO2 levels which ________ plasma pH.
A. decreases; increases B. increases; decreases C. decreases; decreases D. increases; increases
The figure illustrates changes in the membrane potential during an action potential. What does "D" represent?
A. Local potential B. Repolarization C. Afterpotential D. Depolarization E. Threshold